Sorry Snake someone came by and wanted me to do some work....the nerve!
At any rate Keith Craft was running a 3:31 in his car last year at Run and Gun and it was very easy to drive on the street and track (very very fast too!). I still have the 3.50 gears in mine and they are a much better fit for me than the 3.70 that I had. My toploader is a Close Ratio (2.32 first, 1.69 second, 1.36 third, & 1.0 fourth). I am also running an aluminium flywheel and a kevlar clutch. So, I get a little more first gear wind than a TKO or a Wide Ratio. Never been a problem because I have enough hp to light em up at will.
I think if you choose the 3.50 gears you will be happy with your versatility and being able to cruise at a reasonable rpm on the freeways. I was mostly thinking of getting the 3.31 gears for tracks like Road America (4.2 miles w/ long straights) and Texas Motor Speedway (high banks of speed).
Clois